Home / 55,291.21-82,930.70-19,744.90

Finding the Fourth Proportional to 55,291.21, 82,930.70 and 19,744.90

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Solution

The fourth proportional to 55,291.21, 82,930.70 and 19,744.90 is: 29,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291.21 : 82,930.70 = 19,744.90 : x
  2. Step 2: Convert to fraction form
    55,291.21/82,930.70 = 19,744.90/x
  3. Step 3: Cross multiply
    55,291.21x = 82,930.70 × 19,744.90
  4. Step 4: Simplify right side
    55,291.21x = 1,637,458,220.47
  5. Step 5: Solve for x
    x = 1,637,458,220.47/55,291.21
  6. Step 6: Final answer
    x = 29,615.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.